5V USB 2-Channel Programmable Relay Module For Smart Home – Computer Controlled

DIY smart home project?

Grab this 2-channel USB relay module.

It runs on 5V straight from a USB port, so you can control it with a computer, Raspberry Pi, or anything that speaks USB.

Programmable, so you can write scripts to turn lights, fans, or other gadgets on and off based on triggers.

Two channels mean you can control two separate devices.

Made in China, unbranded/generic, but it's a solid little board for automation experiments.

No fancy software needed—just basic control.

Whether you're automating your grow lights or building a remote switch for your garage, this relay is a cheap and easy starting point.